A 2-month-old girl presents with poor feeding and diaphoresis during feeds. Maternal history reveals rubella infection during pregnancy. Vital signs show HR 160/min, RR 48/min, BP 85/55 mmHg, and SpO2 92% on room air. Cardiac examination reveals a continuous "machinery" murmur below the left clavicle. Chest X-ray demonstrates cardiomegaly with pulmonary congestion. Notably, no cyanosis is present. She is not currently on cardiac medications. Which diagnosis best explains these findings?
- A)Patent ductus arteriosusGABARITO
- B)Tetralogy of Fallot
- C)Atrial septal defect
- D)Coarctation of the aorta
- E)Ventricular septal defect
Explicação
Patent ductus arteriosus is correct. A continuous machinery murmur in an infant, especially with a history of congenital rubella exposure, is classic for patent ductus arteriosus. Persistent shunting from the aorta to the pulmonary artery increases pulmonary b... Ver explicação completa e trilha adaptativa →